TeSys K - differential thermal overload relays - 1.8...2.6 - class 10A

LR2K0308
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Description

TeSys LRK thermal overload relay, 2.6A/690V, thermal setting range 1.8-2.6A, tripping class 10A, for protection of 3-phase motors 0.75kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test slide switch for simulation of a tripping, reset/stop button, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1K06-K16. Mounting on DIN rail, separated from the contactor, with use of a terminal block LA7K0064 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC), Green Premium compliant (RoHs/Reach).

Product Details

[ue] Rated Operational Voltage <= 690 V for power circuit
[ui] Rated Insulation Voltage power circuit: 690 V conforming to BS 4941
[uimp] Rated Impulse Withstand Voltage 6 kV
Ambient Air Temperature for Operation -20-55 °C without derating conforming to IEC 60947
Ambient Air Temperature for Storage -40-70 °C
Compatibility Code LR2K
Control Type red push-button: trip test function
Depth 65 mm
Device Short Name LR2K
Fire Resistance 850 °C conforming to IEC 60695-2-1
Flame Retardance V1 conforming to UL 94
Height 58 mm
Ip Degree of Protection IP2x conforming to IEC 60529
Mechanical Robustness shocks NO contact: 10 Gn for 11 ms conforming to IEC 60068-2-27
Mounting Support under contactor
Net Weight 0.145 kg
Network Frequency <= 400 Hz
Network Type DC
Product Certifications UL
Product Compatibility LP4K
Product Name TeSys LRK
Product or Component Type differential thermal overload relay
Range TeSys
Range of Product TeSys K thermal overload relays
Standards BS 4941
Tightening Torque 1.3 N.m - on screw clamp terminals - with screwdriver Philips No 2
Width 45 mm
Connections - Terminals screw clamp terminals 1 cable(s) 1.5-4 mm²solid
[ith] Conventional Free Air Thermal Current 6 A for signalling circuit
Associated Fuse Rating 6 A gG for signalling circuit conforming to VDE 0660
Auxiliary Contact Composition 1 NO + 1 NC
Local Signalling trip indicator (yellow)
Operating Altitude 2000 m without derating
Phase Failure Sensitivity yes conforming to IEC 60947-4-1
Power Dissipation Per Pole 2 W
Protective Treatment TC conforming to IEC 60068
Relay Application motor protection
Thermal Overload Class class 10A conforming to IEC 60947-4-1
Thermal Protection Adjustment Range 1.8-2.6 A

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